Dirac quasiparticles in the mixed state
Abstract
Energies and wave functions are calculated for d-wave quasiparticles in the mixed state using the formalism of Franz and Tesanovic for the low-lying energy levels. The accuracy of the plane-wave expansion is explored by comparing approximate to exact results for a simplified one-dimensional problem, and the convergence of the plane- wave expansion to the two-dimensional case is studied. The results are used to calculate the low-energy tunneling density of states and the low-temperature specific heat, and these theoretical results are compared to semiclassical treatments and to the available data. Implications for the muon spin resonance measurements of vortex core size are also discussed.
Cite
@article{arxiv.cond-mat/0011053,
title = {Dirac quasiparticles in the mixed state},
author = {Daniel Knapp and Catherine Kallin and A. J. Berlinsky},
journal= {arXiv preprint arXiv:cond-mat/0011053},
year = {2007}
}
Comments
13 pages, 15 figures, RevTeX. References corrected. A factor of 2 in the results has been corrected, and the conclusions have been updated